Trace number 1737014

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
IUT_BMB_SAT 1.0UNSAT 0.581911 0.58117

General information on the benchmark

NameCRAFTED/parity-games/
instance_n4_i5_pp.cnf
MD5SUMc15885aa7570af76db584f0c4936c8d8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.280956
Satisfiable
(Un)Satisfiability was proved
Number of variables1960
Number of clauses11270
Sum of the clauses size35662
Maximum clause length12
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22945
Number of clauses of size 34500
Number of clauses of size 42881
Number of clauses of size 5940
Number of clauses of size over 54

Solver Data 

0.00/0.00	c IUT_BMB_SAT version 1.0
0.09/0.12	c WARNING: for repeatability, setting FPU to use double precision
0.09/0.12	c ============================[ Problem Statistics ]=============================
0.09/0.12	c |                                                                             |
0.09/0.12	c |  Number of variables:  1960                                                 |
0.09/0.12	c |  Number of clauses:    11100                                                |
0.09/0.13	c |  Parsing time:         0.01         s                                       |
0.09/0.16	c ============================[ Search Statistics ]==============================
0.09/0.16	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.16	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.16	c ===============================================================================
0.09/0.16	c |         0 |    1055     7646    26006 |     2548        0    nan |  0.000 % |
0.09/0.16	c |       102 |    1054     7646    26006 |     2803      101      8 |  2.347 % |
0.09/0.17	c |       252 |    1054     7646    26006 |     3083      251     10 |  2.347 % |
0.09/0.18	c |       477 |    1054     7646    26006 |     3392      476     12 |  2.347 % |
0.11/0.20	c |       814 |    1054     7619    25916 |     3731      813     14 |  2.347 % |
0.11/0.24	c |      1321 |    1053     7592    25826 |     4104     1319     15 |  2.398 % |
0.11/0.31	c |      2082 |    1053     7592    25826 |     4515     2080     15 |  2.398 % |
0.11/0.40	c |      3221 |    1053     7592    25826 |     4966     3219     14 |  2.399 % |
0.11/0.54	c |      4929 |    1047     7019    23432 |     5463     1406     12 |  2.704 % |
0.11/0.57	c ===============================================================================
0.11/0.57	c restarts              : 9
0.11/0.57	c conflicts             : 5215           (11616 /sec)
0.11/0.57	c decisions             : 8275           (1.43 % random) (18433 /sec)
0.11/0.57	c propagations          : 865763         (1928499 /sec)
0.11/0.57	c conflict literals     : 73285          (36.94 % deleted)
0.11/0.57	c Memory used           : 3.05 MB
0.11/0.57	c CPU time              : 0.448931 s
0.11/0.57	
0.11/0.57	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1737014-1240814234/watcher-1737014-1240814234 -o /tmp/evaluation-result-1737014-1240814234/solver-1737014-1240814234 -C 1200 -W 1800 -M 1800 --output-limit 1,15 IUT_BMB_SAT HOME/instance-1737014-1240814234.cnf HOME 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.41 1.10 1.03 3/64 18026
/proc/meminfo: memFree=1569616/2055920 swapFree=4192956/4192956
[pid=18026] ppid=18024 vsize=1724 CPUtime=0
/proc/18026/stat : 18026 (IUT_BMB_SAT) R 18024 18026 17734 0 -1 4194304 237 0 0 0 0 0 0 0 18 0 1 0 109450745 1765376 220 1992294400 134512640 135635285 4294956208 18446744073709551615 135072790 0 0 4096 0 0 0 0 17 0 0 0
/proc/18026/statm: 431 220 97 274 0 154 0

[startup+0.0488749 s]
/proc/loadavg: 1.41 1.10 1.03 3/64 18026
/proc/meminfo: memFree=1569616/2055920 swapFree=4192956/4192956
[pid=18026] ppid=18024 vsize=2384 CPUtime=0.04
/proc/18026/stat : 18026 (IUT_BMB_SAT) R 18024 18026 17734 0 -1 4194304 412 0 0 0 4 0 0 0 18 0 1 0 109450745 2441216 395 1992294400 134512640 135635285 4294956208 18446744073709551615 135072790 0 0 4096 0 0 0 0 17 0 0 0
/proc/18026/statm: 596 395 97 274 0 319 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2384

[startup+0.102878 s]
/proc/loadavg: 1.41 1.10 1.03 3/64 18026
/proc/meminfo: memFree=1569616/2055920 swapFree=4192956/4192956
[pid=18026] ppid=18024 vsize=2648 CPUtime=0.09
/proc/18026/stat : 18026 (IUT_BMB_SAT) R 18024 18026 17734 0 -1 4194304 484 0 0 0 7 2 0 0 18 0 1 0 109450745 2711552 467 1992294400 134512640 135635285 4294956208 18446744073709551615 135132478 0 0 4096 0 0 0 0 17 0 0 0
/proc/18026/statm: 662 467 100 274 0 385 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2648

[startup+0.301897 s]
/proc/loadavg: 1.41 1.10 1.03 3/64 18026
/proc/meminfo: memFree=1569616/2055920 swapFree=4192956/4192956
[pid=18026] ppid=18024 vsize=2648 CPUtime=0.11
/proc/18026/stat : 18026 (IUT_BMB_SAT) S 18024 18026 17734 0 -1 4194304 490 0 0 0 8 3 0 0 18 0 1 0 109450745 2711552 472 1992294400 134512640 135635285 4294956208 18446744073709551615 135129070 0 65536 4102 0 18446744071563356171 0 0 17 0 0 0
/proc/18026/statm: 662 472 105 274 0 385 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 2648

Solver just ended. Dumping a history of the last processes samples

[startup+0.501915 s]
/proc/loadavg: 1.41 1.10 1.03 3/64 18026
/proc/meminfo: memFree=1569616/2055920 swapFree=4192956/4192956
[pid=18026] ppid=18024 vsize=2648 CPUtime=0.11
/proc/18026/stat : 18026 (IUT_BMB_SAT) S 18024 18026 17734 0 -1 4194304 490 0 0 0 8 3 0 0 18 0 1 0 109450745 2711552 472 1992294400 134512640 135635285 4294956208 18446744073709551615 135129070 0 65536 4102 0 18446744071563356171 0 0 17 0 0 0
/proc/18026/statm: 662 472 105 274 0 385 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 2648

Child status: 0
Real time (s): 0.58117
CPU time (s): 0.581911
CPU user time (s): 0.537918
CPU system time (s): 0.043993
CPU usage (%): 100.128
Max. virtual memory (cumulated for all children) (KiB): 2648

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.537918
system time used= 0.043993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1546
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 8
involuntary context switches= 3

runsolver used 0.000999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node55 at 2009-04-27 08:37:14
IDJOB=1737014
IDBENCH=71640
IDSOLVER=523
FILE ID=node55/1737014-1240814234
PBS_JOBID= 9187476
Free space on /tmp= 66388 MiB

SOLVER NAME= IUT_BMB_SAT 1.0
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n4_i5_pp.cnf
COMMAND LINE= IUT_BMB_SAT BENCHNAME TMPDIR
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1737014-1240814234/watcher-1737014-1240814234 -o /tmp/evaluation-result-1737014-1240814234/solver-1737014-1240814234 -C 1200 -W 1800 -M 1800 --output-limit 1,15  IUT_BMB_SAT HOME/instance-1737014-1240814234.cnf HOME

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= c15885aa7570af76db584f0c4936c8d8
RANDOM SEED=1505300556

node55.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.240
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.240
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1570160 kB
Buffers:         70324 kB
Cached:         325300 kB
SwapCached:          0 kB
Active:         157640 kB
Inactive:       251928 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1570160 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2544 kB
Writeback:           0 kB
Mapped:          23700 kB
Slab:            62276 kB
Committed_AS:   342936 kB
PageTables:       1360 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66388 MiB
End job on node55 at 2009-04-27 08:37:14